Iris Pro Graphics P580 vs Radeon HD 7990

When choosing between Iris Pro Graphics P580 and Radeon HD 7990, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between Iris Pro Graphics P580 and Radeon HD 7990.

Iris Pro Graphics P580 is a Laptop Graphics Card

Note: Iris Pro Graphics P580 is only used in laptop graphics. It has lower GPU clock speed compared to the desktop variant, which results in lower power consumption, but also 10-30% lower gaming performance. Check available laptop models with Iris Pro Graphics P580 here:

Main Specs

  Iris Pro Graphics P580 Radeon HD 7990
Power consumption (TDP) 15 Watt 375 Watt
Interface PCIe 3.0 x1 PCIe 3.0 x16
Supplementary power connectors 2x 8-pin
Memory type DDR3L/LPDDR3/DDR4 GDDR5
Maximum RAM amount 64 GB 3 GB
Display Connectors No outputs 1x DVI, 4x mini-DisplayPort
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  • Radeon HD 7990 has 2400% more power consumption, than Iris Pro Graphics P580.
  • Iris Pro Graphics P580 is connected by PCIe 3.0 x1, and Radeon HD 7990 uses PCIe 3.0 x16 interface.
  • Iris Pro Graphics P580 has 61 GB more memory, than Radeon HD 7990.
  • Iris Pro Graphics P580 is used in Laptops, and Radeon HD 7990 - in Desktops.
  • Iris Pro Graphics P580 is build with Gen. 9 Skylake architecture, and Radeon HD 7990 - with GCN 1.0.
  • Core clock speed of Radeon HD 7990 is 600 MHz higher, than Iris Pro Graphics P580.
  • Iris Pro Graphics P580 is manufactured by 14 nm process technology, and Radeon HD 7990 - by 28 nm process technology.

Game benchmarks

high / 1080p 10−11 35−40
ultra / 1080p 6−7 21−24
QHD / 1440p 0−1 16−18
4K / 2160p 10−11
low / 720p 21−24 60−65
medium / 1080p 12−14 40−45
The average gaming FPS of Radeon HD 7990 in Assassin's Creed Odyssey is 215% more, than Iris Pro Graphics P580.

Full Specs

  Iris Pro Graphics P580 Radeon HD 7990
Architecture Gen. 9 Skylake GCN 1.0
Code name Skylake GT4e Malta
Type Laptop Desktop
Release date 1 September 2015 24 April 2013
Pipelines 72 2048
Core clock speed 350 MHz 950 MHz
Boost Clock 1100 MHz 1000 MHz
Transistor count 189 million 4,313 million
Manufacturing process technology 14 nm 28 nm
Texture fill rate 75.60 128.0
Floating-point performance 2x 4,096 gflops
Length 307 mm
Memory bus width 384 Bit
Memory clock speed 6000 MHz
Memory bandwidth 288.0 GB/s
Shared memory +
DirectX 12 (12_1) 12 (11_1)
Shader Model 6.4 5.1
OpenGL 4.6 4.6
OpenCL 2.1 1.2
Vulkan 1.1.97 1.2.131
Bitcoin / BTC (SHA256) 459 Mh/s
Ethereum / ETH (DaggerHashimoto) 44 Mh/s
Quick Sync +
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